def _checkRoundTrip(self, d):
"""Test that a Datum can be serialized and restored.
"""
json_data = d.json
d2 = Datum.deserialize(**json_data)
self._assertDatumsEqual(d, d2)
yaml_data = yaml.dump(d)
d3 = yaml.safe_load(yaml_data)
self._assertDatumsEqual(d, d3)
def test_json_output(self):
"""Verify content from json property and deserialization."""
d = Datum(5., 'mmag', label='millimag', description='Hello world')
dj = d.json
self.assertEqual(d.quantity.value, dj['value'])
self.assertEqual(d.unit_str, dj['unit'])
self.assertEqual(d.label, dj['label'])
self.assertEqual(d.description, dj['description'])
new_datum = Datum.deserialize(**dj)
self.assertEqual(d, new_datum)
